Import Blink layout tests for Promises.

test/webkit/fast/js/Promise-then.js

-// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright 2014 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
 //     notice, this list of conditions and the following disclaimer in the
 //     documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-description("This test checks use of the regexp constructor.");
+// Flags: --harmony
+'use strict';
+description('Test Promise.prototype.then');
 
-var re = /abc/;
+var resolve;
+var result;
+var thisInOnFulfilled;
+var thisInInit;
 
-shouldBeTrue("re === RegExp(re)");
-shouldBeTrue("re !== new RegExp(re)");
-shouldThrow("re === RegExp(re,'i')");
-shouldThrow("re !== new RegExp(re,'i')");
+var firstPromise = new Promise(function(newResolve) {
+  thisInInit = this;
+  resolve = newResolve;
+});
+
+var secondPromise = firstPromise.then(function(localResult) {
+  thisInOnFulfilled = this;
+  shouldBe('thisInOnFulfilled', 'undefined');
+  result = localResult;
+  shouldBeEqualToString('result', 'hello');
+  return 'world';
+});
+
+shouldBe('thisInInit', 'undefined');
+shouldBeTrue('firstPromise instanceof Promise');
+shouldBeTrue('secondPromise instanceof Promise');
+
+secondPromise.then(undefined, 37).then(function(localResult) {
+  result = localResult;
+  shouldBeEqualToString('result', 'world');
+  throw 'exception'
+}).then(1, 2).then(function() {
+  testFailed('resolved');
+}, function(localResult) {
+  testPassed('rejected');
+  result = localResult;
+  shouldBeEqualToString('result', 'exception');
+}).then(function() {
+  testPassed('resolved');
+  finishJSTest();
+}, function() {
+  testFailed('rejected');
+  finishJSTest();
+});
+
+resolve('hello');